According to its latest numbers, Warner Bros announced that 300 has surpassed the 400,000 unit mark. That is more than any other Blu-ray or HD DVD movie.

The film, set in 480 BC and based on Frank Miller's novel about the Battle of Thermopylae, earned over $210 million at American theaters and sold over 250,000 HD DVD and Blu-ray copies in its first week on store shelves.

Warner is the only major studio that continues to support both high definition formats, and claims that it owns 36% market share of all next-gen DVD sales.

The Blu-ray version of 300 has outsold the HD DVD version by a margin of around two-to-one, which is the same for most dual-format releases to date. Blu-ray movie sales on whole are outperforming the competing format by a margin of around four-to-one.